A mass has a charge of q = 5e, where e is the charge on an electron. (a) Determine the electric potential (in V) due to the charge at a distance r = 0.160 cm from the charge. -4.50e-06 ✔ V (b) Determine the electric potential difference (in V) between a point that is 5r away and this point, that is V(5r) - V(r). 7.20e-07 x Don't forget, we want V(5r) - V(r) and not V(r) - V(5r). Try writing your answer in terms of the expression for V(r) obtained in part (a). V (c) Determine the electric potential difference (in V) between a point that is away and this point, that is 5V (5) - - V(r). -1.80e-06 X Don't forget, we want (5) - V(r) and not V(r) - (). Try writing your answer in terms of the expression for V(r) obtained in part (a). V (d) How would the answers change if the electrons are replaced by protons? O The sign of answer (a) would change. O The sign of answer (b) would change. O The sign of answer (c) would change. O The sign of all answers would change. O All answers would remain the same.

A mass has a charge of q = 5e, where e is the charge on an electron. (a) Determine the electric potential (in V) due to the charge at a distance r = 0.160 cm from the charge. -4.50e-06 ✔ V (b) Determine the electric potential difference (in V) between a point that is 5r away and this point, that is V(5r) - V(r). 7.20e-07 x Don't forget, we want V(5r) - V(r) and not V(r) - V(5r). Try writing your answer in terms of the expression for V(r) obtained in part (a). V (c) Determine the electric potential difference (in V) between a point that is away and this point, that is 5V (5) - - V(r). -1.80e-06 X Don't forget, we want (5) - V(r) and not V(r) - (). Try writing your answer in terms of the expression for V(r) obtained in part (a). V (d) How would the answers change if the electrons are replaced by protons? O The sign of answer (a) would change. O The sign of answer (b) would change. O The sign of answer (c) would change. O The sign of all answers would change. O All answers would remain the same.

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter16: Electrical Energy And Capacitance

Section: Chapter Questions

Problem 8P: (a) Find the potential difference VB required to stop an electron (called a slopping potential)...

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